Graph the quadratic function. Determine the vertex, find the equation of the axis of symmetry, find any x- and y-intercepts, and state the domain and range in interval notation.f(x) = -x2 - 8x
A. vertex: (-4, 16)
axis of symmetry: x = -4
x-intercepts: 0 and -8; y-intercept: 0
domain: (-?, ?); range: (-?, 16]
B. vertex: (4, -16)
axis of symmetry: x = 4
x-intercept: none; y-intercept: -32
domain: (-?, ?); range: (-?, -16]
C. vertex: (-4, -16)
axis of symmetry: x = -4
x-intercept: none; y-intercept: -32
domain: (-?, ?); range: (-?, -16]
D. vertex: (4, 16)
axis of symmetry: x = 4
x-intercepts: 0 and 8; y-intercept: 0
domain: (-?, ?); range: (-?, 16]
Answer: A
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Graph the function.y = sin
A.
B.
C.
D.
If the following is a polynomial function, then state its degree and leading coefficient. If it is not, then state this fact.f(x) = -17 - 12x4 - 9x + 13x3 - 4x2
A. Degree: -17; leading coefficient: -12 B. Degree: 4; leading coefficient: -17 C. Degree: 4; leading coefficient: -12 D. Not a polynomial function.
Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.8th term is 28; 13th term is -2
A. a1 = 76, d = -6, an = an-1 - 6 B. a1 = 70, d = -6, an = an-1 - 6 C. a1 = 76, d = 6, an = an-1 + 6 D. a1 = 70, d = 6, an = an-1 + 6
Solve.log6 x = -2
A.
B. {64}
C. {36}
D.